SU1544292A2 - Closed irrigation system - Google Patents

Abstract

The invention relates to irrigation technology and can be used for combined irrigation (sprinkling and furrow irrigation). The purpose of the invention is to improve the performance of the system. The closed irrigation system consists of a distribution pipe 1 connected through head valves 2 with irrigation pipes which are divided into separate sections by retractable hydrants 4. The sections of the irrigation pipe approach to the hydrant: the previous one located between the head valve 2 and the hydrant, and the next between the first and second hydrants. The irrigation pipeline consists of a rigid perforated pipeline 5 and an elastic transporting pipeline 6 inside it. Inside the retractable hydrant there is a continuous hydraulic actuator 8, the inlet of which is connected to the previous transporting one, the low pressure one followed by the perforated pipelines apparatus 14, installed under the cover 22 in the upper part of the trunk of the hydrant. The system provides simultaneous sprinkling of the site and watering along the furrows of the site following the sprinkler. Hydraulic multiplier 8 provides watering of the site adjacent to the hydrant

Description

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KI retractable hydrants. Irrigation pipeline sections approach the hydrant: the previous one, located between the main valve and the hydrant, and the next one, located between the first and second hydrants. The irrigation piping consists of a rigid perforated piping 5 and an elastic transport piping 6 inside it. A hydraulic multiplier 8 of continuous action is installed inside the extendable hydrant, the inlet pipe of which is connected to the previous transport piping, low pressure. The invention relates to irrigation technology, can be used for combined irrigation (sprinkling and furrow irrigation) and is an improvement of the known system of ed. CE, No. 596191.

The purpose of the invention is to improve the operational characteristics of the system (In Fig. 1, the irrigation system is closed, the plan; Fig. 2 is a section of the irrigation pipeline; Fig. 3 is a retractable outlet; Fig. 4 is a gate diagram; Fig. Fig. 5 shows the arrangement of control elements in the outlet of the outlet; Fig. 6 is a diagram of the outlet with the apparatus of an auto-oscillatory action.

The closed irrigation system for irrigation along furrows and sprinkling consists of a distribution pipe 1 connected through head valves 2 with irrigation pipes 3 laid at a depth below the arable soil horizon and divided into separate sections by retractable water outlets - hydrants 4. Each site has two sites adjacent to it - irrigation pipeline: the previous one, located between the head valve 2 and the hydrant, and the next one located between the first and second hydrants.

The irrigation pipeline consists of a rigid perforated pipeline 5 and an elastic transporting pipeline 6 inside it (FIG. 2),

To control the transfer of water from the area preceding the perforation to the subsequent perforated pipes, and the high-pressure pipe through the flexible pipe, with the sprinkler 14 installed under the lid 22 in the upper part of the hydrant shaft. The system provides simultaneous sprinkling of the site and watering along the furrows of the site following the sprinkler. The multiplier 8 provides for irrigation of the area adjacent to the hydrant under increased pressure and at a lower flow rate. At the same time, the water enters the subsequent pipeline at low pressure, 1 hp, oil, 6 sludge.

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A valve 7 serves from the section of the previous transport pipe 5 to the subsequent transporting pipeline 6 to the continuous multiplier 8 and the valve 9 to the subsequent transporting pipeline 5, from the cavity of the hydrant trunk to the subsequent transporting valve 10.

The previous section of the perforated pipeline 5 is connected to the cavity of the hydrant trunk by pipeline 11.

The tubular cavity of the hydrant is connected to a subsequent section of the transporting pipeline 6 by pipe 12. The low pressure channel of the multiplier 8 by flexible hose 13 is connected to the sprinkler 14 Q of continuous operation, and the high pressure channel through pipeline 15 to the subsequent perforated pipeline 5.

e The extendable hydrant consists of a barrel 56 and a housing 17. In the barrel 16 there is a telescopic rod 18 connected to the top section of the nut 19 of the valve 9, and at the top a freely rotating roller 20 through which a flexible cable 21 is thrown connected to the valve 9. When the cover is removed, the mechanism for opening the valve 9 comprises a lever 23, a pawl 24, an emphasis 25 and springs 26 and 27. An emphasis 25 is located on the body of the hydrant. The dog 24 is mounted pivotally on the axis and. tucked spring 26 to stop 25.

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For connecting the preceding pipeline 5 with the subsequent pipeline 6 serves as the pipeline 28, and the previous pipeline 6 with the continuous multiplier 8 - the pipeline 29.

When used on the sprinkler system 30 self-oscillating action (Fig. 6), the pipe 11 is provided with a check valve 31, and the high-pressure pipe 32 of the multiplier 8 communicates with the cavity of the outlet.

The system works as follows.

The closed irrigation system provides simultaneous sprinkling of the site and watering along the furrows of the site next to the extendable hydrant (watering along all turns of the system is parallel).

In the initial position of the valve on all hydrants of the system are in the corresponding position (Fig. 3)

Initially, the system operator, by passing water from the head valve 2 through the perforated pipeline 5, irrigates along the furrows of the section preceding the first retractable hydrant.

Water fills the pipeline 6 and through the pipeline 11 enters the cavity of the retractable hydrant trunk. Under the action of pressure, water through the holes in the preceding perforated pipe 5 rushes through the soil layer, moves up and further along the furrows. The barrel 16 moves upward under the pressure of water until it is recessed from the soil.

Water from the annular cavity of the hydrant through the pipe 12 enters the subsequent transporting pipe 6.

When the barrel 16 is extended out of the housing 17, the telescopic rod 18 of the valve 10 moves up with the barrel, simultaneously pulling the cable 21 connected to the lever 23 of the valve 9.

After the required irrigation rate for the furrows in the section after the head valve 2 is stopped, the water supply to the previous perforated pipeline stops, all the flow is switched to the previous transporting pipeline 6. The latter is connected to the continuous multiplier 8. For

This operation removes the cover 22 of the retractable hydrant, opening access to the actuator of the valves, and rotating the rod 18 moves the valve 9 down to the stop. This also opens the valve 7, connecting via pipe 28 the previous perforated pipe 5 and the subsequent transport pipe 6.

The water expands the preceding conveying pipeline 6, is squeezed out of the pipeline 5 through the holes upwards and through the pipeline 28

5 enters the transport pipeline 6 of the next section. After filling the preceding pipeline 6 with water, it closes the entrance of the pipelines 28 and 11, the total cavity of the hydrant trunk and the preceding pipeline 5; In this case, the preceding transport pipeline 6 through pipe 29 is connected to the inlet manifold of the multiplier 5 of the cathore 8.

There is a sprinkling irrigation of the area adjacent to the hydrant, with less flow, but much more pressure, which contributes to

0 operation of the sprinkler.

Since the low-pressure pipe of the multiplier 8 is connected to the subsequent perforated pipe 5, the flow of water at low pressure

5 through conduit 15 enters the downstream conduit 5, fills it, compressing the elastic conduit 6 and squeezing out the water into the conduit 6 of the next section. As the subsequent perforated pipeline 5 is filled, the hydrant located between the second and third sections is extended, as well as furrowed from the subsequent pipeline 5.

After completion of irrigation along the furrows and irrigation by sprinkling the area adjacent to the hydrant located between the first and second sections,

0 by turning the telescopic rod 18 close the valves 10 and 7.

By rotating the roller 20, the bending thread 21 pulls over it and the slide 9 of FIG. 4) disconnects the subsequent and previous transporting lines 6. The lid 22 of the hydrant is closed. Under the action of water pressure in the annular cavity, the hydrant deepens, water from its cavity enters the pipeline 6. The valve 9 is held in position by the lever 23. When the trunk 16 of the hydrant moves down, it turns the pawl 24 and releases its lever. Under the action of the spring 27, the valve 9 opens, connecting the previous and the next pipelines 6. Thus, all the valves of the hydrant return to their original position, the hydrant is ready for the next watering cycle.

When using self-oscillating sprinklers, water through a high-pressure nozzle 32 of the multiplier fills the barrel cavity, compressing the air in it. When the required pressure is reached, a pulse sprinkler is activated, at the moment of splashing, the barrel of the sprinkler head turns at a certain angle. Further, the accumulation-splash process is repeated.

Watering continues, making similar operations on the following water outlets of each line of the system.

After the termination of irrigation of the last section along the furrows and the section adjacent to the last hydrant, the water supply is stopped by sprinkling, closing the head valve 2

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The system is prepared for the next watering.

Claims (2)

1. The irrigation system is closed according to the author. St. No. 596191, characterized in that, in order to improve performance, retractable water outlets are equipped with continuous sprinklers and hydraulic multipliers, the inlet pipes of which are connected to the previous sections of the transporting pipeline through the valves, low-pressure pipes with high-pressure pipes through the bend pipes, and high-pressure pipes through bending pipes and high-pressure pipes through bending pipes with high-pressure pipes through bending pipes with high-pressure pipes through bending pipes and high-pressure pipes through bending pipes with high-pressure pipes through bending pipes and high-pressure pipes with bending - with sprinklers mounted on the barrels of the sliding water pipes. 2. The system of claim 1, wherein, when using a self-oscillating sprinkler, the high-pressure manifold of the multivibrator is connected to the apparatus through the bore cavity, and the pipeline connecting the previous section of the perforated piping to the cavity of the discharge barrel is provided with a check valve. Phys. 1 fig, I 21 sixteen